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...ld download the ldlinux.c32 file using UNDI API. but before that it will close and open the underlying device (which is ipxe), and hooking the device interrupt so it can start getting some packets. What I'm experiencing is that if the underlying device doesn't support interrupts, i.e. the IntNumber that is returned in PXENV_UNDI_GET_INFORMATION is 0, then lpxelinux.0 will hook IRQ0 which is very bad behavior. one good example of the faulty code is in undinet.c where we open a device, we hook the IRQ regardless if its 0 or not, while in the latest iPXE code this behavior was corrected and a c...

hi does anyone know if there are some known issues with running lpxelinux.0 with device that doesn't support Interrupts? i.e. irq function is null...

...ing UNDI API. > > but before that it will close and open the underlying device (which > is ipxe), and hooking the device interrupt so it can start getting > some packets. > > What I'm experiencing is that if the underlying device doesn't > support interrupts, i.e. the IntNumber that is returned in > PXENV_UNDI_GET_INFORMATION is 0, then lpxelinux.0 will hook IRQ0 > which is very bad behavior. > > one good example of the faulty code is in undinet.c where we open a > device, we hook the IRQ regardless if its 0 or not, while in the > latest iPXE code this...

Thanks Nick. I've been pursuing Gao's technique but can't seem to get opt to remove obviously dead code from even the following trivial example: int mult(int a, int b){ return a*b; } int main(void){ return 0; } While mult is never called it still is not removed. I just can't seem to get opt to understand it's seeing the whole program so it can remove this